UUIDs on drives

[Derek Broughton]

Smoot Carl-Mitchell wrote:

> On Thu, 2008-08-14 at 12:27 -0300, Derek Broughton wrote:
> 
>> When you find some duplication, _then_ object.  I don't believe you're
>> ever
>> going to find any, even with a 4-byte vfat UUID.   2**128 is still a very
>> big number.
> 
> A quick clarification here.  With a 4 byte number, there is a 1 in 2**32
> (about 1 in 4 billion) chance of duplicating a UUID.  It is not 1 chance
> in 2**128 which is for a 128 bit number.

oops. :-)

2**32 is _still_ a very big number.  There are almost certainly not 4
billion vfat filesystems in the world today.
-- 
derek